extend log timestamps to three decimal places

stepmania/src/RageLog.cpp

@@ -242,7 +242,7 @@ void RageLog::Write( int where, const CString &line )
 
 	CString LineHeader;
 	if( m_bTimestamping )
-		LineHeader += SecondsToMMSSMsMs(RageTimer::GetTimeSinceStart()) + ": ";
+		LineHeader += SecondsToMMSSMsMsMs(RageTimer::GetTimeSinceStart()) + ": ";
 	if( where & WRITE_LOUD )
 		LineHeader += "WARNING: ";
 
@@ -384,7 +384,7 @@ void RageLog::MapLog(const CString &key, const char *fmt, ...)
 {
 	CString s;
 	if( m_bTimestamping )
-		s += SecondsToMMSSMsMs(RageTimer::GetTimeSinceStart()) + ": ";
+		s += SecondsToMMSSMsMsMs(RageTimer::GetTimeSinceStart()) + ": ";
 
 	va_list	va;
     va_start(va, fmt);

stepmania/src/RageUtil.cpp

@@ -126,6 +126,15 @@ CString SecondsToMMSSMsMs( float fSecs )
 	return sReturn;
 }
 
+CString SecondsToMMSSMsMsMs( float fSecs )
+{
+	const int iMinsDisplay = (int)fSecs/60;
+	const int iSecsDisplay = (int)fSecs - iMinsDisplay*60;
+	const float fLeftoverDisplay = (fSecs - iMinsDisplay*60 - iSecsDisplay) * 1000;
+	CString sReturn = ssprintf( "%02d:%02d.%03.0f", iMinsDisplay, iSecsDisplay, min(999.0f,fLeftoverDisplay) );
+	return sReturn;
+}
+
 CString PrettyPercent( float fNumerator, float fDenominator)
 {
 	return ssprintf("%0.2f%%",fNumerator/fDenominator*100);

stepmania/src/RageUtil.h

@@ -140,6 +140,7 @@ bool IsHexVal( const CString &s );
 float HHMMSSToSeconds( const CString &sHMS );
 CString SecondsToHHMMSS( float fSecs );
 CString SecondsToMMSSMsMs( float fSecs );
+CString SecondsToMMSSMsMsMs( float fSecs );
 CString PrettyPercent( float fNumerator, float fDenominator );
 inline CString PrettyPercent( int fNumerator, int fDenominator ) { return PrettyPercent( float(fNumerator), float(fDenominator) ); }
 CString Commify( int iNum );